The hypothesis is that the slice of cucumber will be most prone to germ contamination.

You will store the Petri dishes in a refrigerator, label them, wear sterilized gloves, wash the cucumber and cheese crackers, and drop a slice of cucumber and a piece of cheese cracker into different locations. You will then swab the surfaces and count the number of bacteria colonies after three days.

You will need 8 agar Petri dishes, 80 disinfected swabs, a bottle of disinfected water, a box of cheese crackers, a cucumber, a knife, a chopping board, a box of sterilized rubber gloves, a stopwatch, and 2 sterilized plastic bags.

The results showed that the Petri dishes swabbed with samples from the cucumber slices had more bacterial growth spots than the Petri dishes swabbed with samples from the cheese crackers. This supports the hypothesis that cucumbers (wet food) are more prone to contamination by germs.

This science project is interesting because it shows how germs can spread and how important it is to practice good hygiene.

Variations of this science project include repeating the experiment in other locations such as the school or park, and trying it with other types of food such as jelly, apples, and candies.

Hey there! Here are some awesome videos about this science project that we think you'll really like. They're not only super fun, but they'll also help you learn more about the science behind the project. So sit back, relax, and get ready to have some fun!!